Qiu Shi Zheng

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Spring, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Pressure balanced fluid control device
- Patent number 7,249,750
- Issue date Jul 31, 2007
- FMC Technologies, Inc.
- Qiu Shi Zheng
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Pressure balanced fluid control device
- Patent number 7,066,444
- Issue date Jun 27, 2006
- FMC Technologies, Inc.
- Qiu Shi Zheng
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Stackable metallic seal and method of using same
- Patent number 6,869,079
- Issue date Mar 22, 2005
- FMC Technologies, Inc.
- Qiu Shi Zheng
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Energized sealing cartridge for annulus sealing between tubular wel...
- Patent number 6,510,895
- Issue date Jan 28, 2003
- FMC Technologies
- Bashir M. Koleilat
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
PRESSURE BALANCED FLUID CONTROL DEVICE
- Publication number 20060192169
- Publication date Aug 31, 2006
- Qiu Shi Zheng
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Pressure balanced fluid control device
- Publication number 20050173667
- Publication date Aug 11, 2005
- Qiu Shi Zheng
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Apparatus and method for inhibiting a flow of fluid through an inte...
- Publication number 20040094898
- Publication date May 20, 2004
- Qiu Shi Zheng
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Metal-to-metal seal and method of making same
- Publication number 20030155721
- Publication date Aug 21, 2003
- Qiu Shi Zheng
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Stackable metallic seal and method of using same
- Publication number 20030155717
- Publication date Aug 21, 2003
- Qiu Shi Zheng
- E21 - EARTH DRILLING MINING
Information Patent Application
Fluid seal and method of using same
- Publication number 20030080516
- Publication date May 1, 2003
- Qiu Shi Zheng
- E21 - EARTH DRILLING MINING